摘要
进行了水泥分别粉磨的半工业试验,旨在验证水泥分组分最佳粒度分布理论。结果表明,分别粉磨的熟料可以达到最佳性能粒度分布的要求,使熟料有充分的水化程度;将混合材料单独粉磨至特征粒径比熟料明显偏低,可以充分发挥混合材料的填充效应和活性效应。熟料、混合材料分别粉磨后,在P·I水泥中掺加6%高细收尘灰、30%矿渣粉、4%粉煤灰混合配制的水泥,水化热稍有降低,3d、7d、28d和90d抗压强度分别提高5.0MPa、7.3MPa、7.6MPa和11.4MPa。分别粉磨对提高水泥性能具有很大优势。简要介绍了国外典型的分别粉磨生产线。
The pilot test of cement clinker and admixture was carried on to verify the theory of the optimum particle size distribution of different components of cement. The results showed that the separate grinding cement clinker could reach the demand of the optimum particle size distribution, and the clinker had a sufficient hydration degree; the filling effect and activity effect of admixture could exerted with a less feature grain size than that of clinker by separate grinding. After separate grinding, the P· I cement blended with 6% ultra fine kiln dust, 30% GGBS and 4% fly ash had a lower hydration heat, and the compressive strength of 3d, 7d, 28d, 90d increased 5.0MPa, 7.3MPa, 7.6MPa, 11.4MPa. So the separate grinding process had a certain advantage than traditional grinding process. The typical separate grinding process of overseas was presented too.
出处
《水泥》
CAS
2008年第8期9-14,共6页
Cement
关键词
水泥粉磨
分别粉磨
粒度分布
水泥性能
工程应用
cement grinding
separate grinding process
particle size distribution
cement property
engineering application
